Marine bumper



FIG. 1 is a perspective view of a marine bumper;

FIG. 2 is a side view thereof;

FIG. 3 is an opposite side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top end view thereof; and,

FIG. 7 is a bottom view thereof. 

CLAIM The ornamental design for a marine bumper, as shown and described. 